Cognomen 弟桃 (弟桃 
) , in all the world, is a very rare surname. The last name 弟桃 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 弟桃 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 弟桃 | China |